Customizable Gausian Blur

Here we go!

This Gausian Blur Shader Is Fully customizable!
you can also tint the color with rgb values and also make it dark as you want

You can use this shader as you want! (no problem! even in your games you can use it! 🙂 )

Shader Code is Down Below! 😀 (you also can see the differences on the images below! :D)

Shader code

// A Customizable Gausian Blur Shader
// Credits to DJBob Gaming YT :D
shader_type canvas_item;
uniform sampler2D SCREEN_TEXTURE : hint_screen_texture, filter_linear_mipmap;
uniform int blur_radius : hint_range(1, 32) = 8;
uniform float Darkness : hint_range(0.0,1.0) = 0.1;
uniform float R : hint_range(0.0,1.0) = 0;
uniform float G : hint_range(0.0,1.0) = 0;
uniform float B : hint_range(0.0,1.0) = 0;
uniform float blur_strength : hint_range(0.1, 10.0) = 1.0;

float gaussian_weight(float i, float sigma) {
    return exp(-0.5 * (i * i) / (sigma * sigma));
}

void calculate_kernel(out float kernel[32], int radius, float sigma) {
    float sum = 0.0;
    for (int i = 0; i <= radius; i++) {
        kernel[i] = gaussian_weight(float(i), sigma);
        sum += i == 0 ? kernel[i] : 2.0 * kernel[i];
    }
    for (int i = 0; i <= radius; i++) {
        kernel[i] /= sum;
    }
}

void fragment() {
    vec2 resolution = SCREEN_PIXEL_SIZE;
    vec2 uv = SCREEN_UV;

    float kernel[32];
    calculate_kernel(kernel, blur_radius, blur_strength);

    vec3 final_color = vec3(0.0);
    float total_weight = 0.0;

    for (int x = -blur_radius; x <= blur_radius; x++) {
        for (int y = -blur_radius; y <= blur_radius; y++) {
            float weight = kernel[abs(x)] * kernel[abs(y)];
            vec2 offset = vec2(float(x), float(y)) * resolution;
            final_color += texture(SCREEN_TEXTURE, uv + offset).rgb * weight;
            total_weight += weight;
        }
    }

    final_color /= total_weight;
	final_color.r = (final_color.r + R) - Darkness;
	final_color.g = (final_color.g + G) - Darkness;
	final_color.b = (final_color.b + B) - Darkness;

    COLOR = vec4(final_color, 1.0);
}

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